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| Battery-Powered | Yes |
| Converter Type | Circuit Protected and Powered |
| Electrical System Type | 3W |
| Finish | N/A |
| Material | Blank |
| Mount Type Description | Blank |
| Output Type | 4-Way Flat |
| Side Application Type Description | Blank |
| T-Connector Location | S1,S2 |
| Tail Light Circuits | 6.0 Amps |
| Turn and Brake Circuits | 3.0 Amps |
| Warranty | One-Year Limited Warranty |
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2022 | Jeep Grand Cherokee WK | — |
The 22-22 JEEP Grand Cherokee WK CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1562) fits 2022 Jeep Grand Cherokee WK models. The 2022 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 22-22 JEEP Grand Cherokee WK CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1562) is designed to fit the 2022 Jeep Grand Cherokee WK.
The 22-22 JEEP Grand Cherokee WK CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1562) fits the following vehicles: 2022 Jeep Grand Cherokee WK. Always verify your specific year, make, and model before ordering.
The 22-22 JEEP Grand Cherokee WK CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1562) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The CURT 56426 is a powered converter wiring harness designed for SUVs and vans. It converts factory taillight signals into a 4-flat trailer connector, allowing you to tow a trailer with standard lighting. The system uses a converter box that processes the vehicle's existing taillight signals (left turn, right turn, brake, and tail/running lights) and outputs them to a 4-flat connector for the trailer.
The CURT 56426 is designed for SUVs and vans using wiring locations S1 and S2 (behind driver and passenger side taillights). It requires a 12-volt negative ground electrical system. Check your vehicle owner's manual to confirm it has a 12-volt negative ground system. For specific vehicle model compatibility, contact CURT or consult a fitment database, as the manual does not list individual vehicle years and models.
No. The converter system is designed only for 12-volt negative ground systems. If your vehicle has a positive ground system, this product is not compatible. Check your vehicle owner's manual to confirm your electrical system type.
You will need: panel trim removal tool, wire crimper, cutting tool, wire stripper, and fish wire. These are standard electrical and trim tools. The manual notes that proper tools will improve installation quality and reduce time required. Some steps may also require a drill with a 3/32" bit if you need to create a grounding point on the vehicle frame.
The kit includes: custom wiring harness with yellow and green wire ends, black converter box, double-sided tape for mounting the converter box, cable ties for securing wires, white ground wire with ring terminal, ground screw, 4-flat dust cover, and a fuse holder with 10-amp fuse. The fuse should be installed after all other installation steps are complete.
Yes. Step 1 requires you to disconnect the negative battery terminal before beginning installation. Be sure to fasten this wire down and away from the battery during the installation process. Reconnect the negative battery terminal only after all other installation steps are complete and before testing the system.
Open the vehicle hatch and use the panel trim removal tool to remove the push fasteners securing the taillight in place. Carefully pull the taillight straight back from the vehicle. Separate all three connectors, taking care not to damage the locking tabs on the factory wiring. Repeat this process on both the driver and passenger sides.
The fish wire is used to route the custom wiring harness down between the vehicle body and the bumper cover. You secure the custom wiring harness end to the fish wire and pull the harness up through the opening. This allows you to run the wiring without removing the bumper. You may need to flex the bumper cover slightly to get the harness connectors through the opening.
Insert the custom wiring harness end (yellow wire for driver side, green wire for passenger side) fully into the factory wiring connector. Make sure the connectors are fully inserted with the locking tabs in place. The locking tabs secure the connection and prevent accidental disconnection.
Locate a flat, clean surface that is out of the path of spray and debris from the rear wheels and road. Mount the black converter box using the provided double-sided tape. Failure to mount the box in a protected area can cause loss of warranty, product failure, overheating and potential fire. The box must be positioned where it will not be exposed to water spray or road debris.
Locate a grounding point near the converter box, such as an existing screw or bolt in the vehicle frame. The area should be free from rust, dirt, and paint—use an abrasive pad or paper to clean it if necessary. Secure the white ground wire with its ring terminal to the existing fastener, or drill a 3/32" pilot hole and use the provided ground screw. Before drilling, check for hidden items behind or under any surface to avoid damage.
Route the black 12-gauge power wire from the vehicle battery to the converter box, taking care to avoid pinch points and hot or rotating components. When passing the power wire through sheet metal, use an existing grommet, add a new grommet, or use silicone to protect the wire from sharp edges. Secure the power wire to the vehicle chassis using the provided cable ties. The power wire must be connected to the positive battery terminal through a fuse holder with a 10-amp fuse (install the fuse after all other steps are complete).
Use 12-gauge wire or larger for the power connection from the vehicle battery to the converter box. The manual specifies "12 GA wire or larger" on the powered converter lead instruction sheet.
The wiring harness uses the following color scheme: Yellow = Left turn signal, Green = Right turn signal, Red = Brake signal, Brown = Tail/Running lights. The custom harness ends are color-coded: yellow for the driver side and green for the passenger side. The converter box outputs these signals to the 4-flat trailer connector.
The battery connection must be fuse-protected with a 10-amp maximum fuse. Do not exceed this rating. Exceeding the product rating can cause loss of warranty, overheating and potential fire. Install the fuse after all other installation steps are complete.
Signal circuits (left and right turn signals) are rated at 3.0 amps per side. Tail and running light circuits are rated at 6.0 amps total. Do not exceed these ratings or the product rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating and potential fire.
Before drilling any holes, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. When routing the power wire, avoid pinch points and hot or rotating components. Use an existing grommet, add a grommet, or use silicone when passing the power wire through sheet metal to protect it from sharp edges. Disconnect the negative battery terminal before beginning installation. Mount the converter box in a protected area away from wheel spray and debris to prevent overheating and fire.
Once the 12-volt power wire is connected to the harness, verify that the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. This confirms that all signal circuits (left turn, right turn, brake, and tail/running lights) are working correctly before using the system.
When not in use, roll up the 4-flat connector and store it in a convenient, out-of-the-way location inside the trunk. Install the provided 4-flat dust cover to help prevent corrosion. When in use, route the 4-flat to the center of the vehicle and out of the trunk.
Perform periodic inspection of all wires and connections to ensure there is no visible damage or loose connections. Check the converter box mounting to confirm the double-sided tape is still secure. Verify that cable ties are holding wires in place and that no wires have shifted or become pinched. If you notice any damage or loose connections, address them immediately to prevent electrical failure or fire hazard.
CURT Group stands behind their products with industry-leading warranties. To register your purchase and access warranty information, visit warranty.curtgroup.com/surveys. Warranty may be voided if the product rating is exceeded, if the battery connection fuse exceeds 10 amps, or if the converter box is not mounted in a protected area away from wheel spray and debris.
The CURT 56426 is designed for SUVs and vans with factory taillights at locations S1 and S2 (behind driver and passenger side taillights). It requires a 12-volt negative ground electrical system. Check your vehicle owner's manual to confirm compatibility, or contact CURT for specific vehicle model fitment.
Yes. Disconnect the negative battery terminal before beginning installation and reconnect it only after all other steps are complete. This is a required safety step.
Drilling is not required if you can locate an existing screw or bolt on the vehicle frame to ground the converter box. If no suitable grounding point exists, you will need to drill a 3/32" pilot hole. Before drilling, check for hidden items behind or under any surface to avoid damage.
The battery connection must use a 10-amp maximum fuse. Do not exceed this rating, as it can cause loss of warranty, overheating and potential fire.
Mount the converter box in a flat, clean, protected location away from wheel spray and debris. Use the provided double-sided tape. Failure to mount in a protected area can cause loss of warranty, product failure, overheating and potential fire.
First, verify that the negative battery terminal is reconnected and the 10-amp fuse is installed in the fuse holder. Check that all three factory taillight connectors are fully inserted with locking tabs in place on both the driver and passenger sides. Verify that the custom wiring harness ends (yellow and green) are fully inserted into the factory connectors. Test with a test light, 4-flat tester, or functioning trailer to confirm all signals are present. If signals are still absent, check that the converter box is properly mounted and the white ground wire is securely attached to a clean metal grounding point on the vehicle frame.
Check that all three factory taillight connectors are fully inserted with locking tabs in place. Verify that the custom wiring harness ends are fully seated in the factory connectors—a partially inserted connector will cause some signals to work and others to fail. Inspect all wire connections for damage or loose crimps. If only one side (driver or passenger) is not working, check that the fish wire routing was successful and that the harness end was pulled completely through the opening between the vehicle body and bumper cover. You may need to flex the bumper cover to ensure the connectors passed through fully.
Stop using the system immediately. Overheating can cause product failure and potential fire. Check that the converter box is mounted in a protected location away from wheel spray and debris as required in Step 5. If the box is mounted in an exposed location, remount it in a clean, protected area using new double-sided tape. Verify that the electrical load is not exceeding the product rating (3.0 amps per signal circuit, 6.0 amps total for tail/running circuits) or the tow vehicle lamp load rating. Ensure the 10-amp fuse is installed and has not blown. If overheating persists, the product may be defective and should be replaced.
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